Electron Microscope Mystery 7

It’s time for another microscope mystery!

The field of view here is about a millimeter. What is it?

mystery7

Update, 4:50p: This is proving to be a tricky one! Here’s a zoomed-out view.

mystery7b

Update, 5:02p: Hooray! @poikiloblastic guessed right, it’s a key.

mystery7c

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9 Comments on “Electron Microscope Mystery 7”

  1. Matt says:

    The corner of an Iphone/Ipad?

  2. Scott says:

    That’s quite a stumper… appears the corner of something. But what?

  3. Karon says:

    Corner of a business card?

  4. Early says:

    Corner of a razor blade?

  5. I had no inkling initially, but after the zoom out I would go with key.


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